[资料分享] 金属探测传感器MSP430控制程序

fish001 2018-5-27 21:24 楼主

/**** TI LDC1000 驱动程序
#include "msp430f149.h"
#define LDC1000_CS_L P3OUT &= ~BIT0  //片选
#define LDC1000_CS_H P3OUT |= BIT0
#define LDC1000_CLK_L  P3OUT &= ~BIT3  //CLK
#define LDC1000_CLK_H  P3OUT |= BIT3
#define LDC1000_OUT_L  P3OUT &= ~BIT1 //Data Out
#define LDC1000_OUT_H  P3OUT |= BIT1
#define LDC1000_IN    (P3IN&BIT2) //Data In
void Init_LDC1000_Port()
{
  P3DIR |= BIT0 + BIT1 + BIT3;  //P3.0,P3.1,P3.3
  P3DIR &= ~BIT2;             //P3.2
  LDC1000_CS_H;
  LDC1000_CLK_L;
  LDC1000_OUT_H;
}
void LDC1000_WriteData(uchar address, uchar data)
{
  uchar i = 0;
  uchar temp = 0;
  temp = address;
  LDC1000_CS_L;
  LDC1000_CLK_L;
  for(i=0;i<8;i++)
  {
LDC1000_CLK_L;
if(temp&0x80)
{
   LDC1000_OUT_H;
}
else
{
   LDC1000_OUT_L;
}
LDC1000_CLK_H;
temp = temp<<1;
  }
  temp = data;
  for(i=0;i<8;i++)
  {
LDC1000_CLK_L;
if(temp&0x80)
{
   LDC1000_OUT_H;
}
else
{
   LDC1000_OUT_L;
}
LDC1000_CLK_H;
temp = temp<<1;
  }
  LDC1000_CLK_L;
  LDC1000_CS_H;
}
uint LDC1000_ReadData(uchar address, unsigned long *f)
{
  uchar i = 0;
  uchar temp = 0;
  uint rp1 = 0,rp2 = 0;
  uint f1 = 0,f2 = 0;
  unsigned long f3 = 0;
  temp = address;
  temp = temp|0x80;
  LDC1000_CS_L;
  LDC1000_CLK_L;
  for(i=0;i<8;i++)
  {
LDC1000_CLK_L;
if(temp&0x80)
{
   LDC1000_OUT_H;
}
else
{
   LDC1000_OUT_L;
}
LDC1000_CLK_H;
temp = temp<<1;
  }
  LDC1000_OUT_L;
  for(i=0;i<8;i++)
  {
LDC1000_CLK_L;
_NOP();
rp1 |= (LDC1000_IN>>2)<<(7-i);
LDC1000_CLK_H;
  }
  for(i=0;i<8;i++)
  {
LDC1000_CLK_L;
_NOP();
rp2 |= (LDC1000_IN>>2)<<(7-i);
LDC1000_CLK_H;
  }
  rp2 = (rp2<<8 )+ rp1;
  for(i=0;i<8;i++)
  {
LDC1000_CLK_L;
_NOP();
f1 |= (LDC1000_IN>>2)<<(7-i);
LDC1000_CLK_H;
  }
  for(i=0;i<8;i++)
  {
LDC1000_CLK_L;
_NOP();
f2 |= (LDC1000_IN>>2)<<(7-i);
LDC1000_CLK_H;
  }
  f2 = (f2<<8) + f1;
  for(i=0;i<8;i++)
  {
LDC1000_CLK_L;
_NOP();
f3 |= (LDC1000_IN>>2)<<(7-i);
LDC1000_CLK_H;
  }
  f3 = (f3<<16) +f2;
  *f = f3;
  LDC1000_CLK_L;
  LDC1000_CS_H;
  return rp2;
}
void Init_LDC1000_R(void)
{
  Init_LDC1000_Port();
  LDC1000_WriteData(0x01, 0x0A); //250k
  LDC1000_WriteData(0x02, 0x3B); //2.4k
  LDC1000_WriteData(0x03, 241); //low frequency
  LDC1000_WriteData(0x04, 0x17); //4V, 6144
  LDC1000_WriteData(0x05, 0x00); //TBCLK
  LDC1000_WriteData(0x06, 0x50);
  LDC1000_WriteData(0x07, 0xC3); //50k
  LDC1000_WriteData(0x08, 0x88);
  LDC1000_WriteData(0x09, 0x13); // 5k
  LDC1000_WriteData(0x0A, 0x04);  //DRDYB mode
  LDC1000_WriteData(0x0B, 0x01);  //Power on
}
void main()
{
  WDTCTL = WDTPW + WDTHOLD;
volatile unsigned int i;
  BCSCTL1 &= ~XT2OFF;       //开启高频晶振，XT2=8MHZ
  do
  {
IFG1 &= ~OFIFG;          // Clear OSCFault flag
for (i = 0xFF; i > 0; i--);  // Time for flag to set
  }
  while ((IFG1 & OFIFG));
  BCSCTL2 |= SELM1+SELS; //MCLK=SMCLK=XT2=8MHZ
  P5SEL |= BIT4;
  P5DIR |= BIT4;
  unsigned int rp = 0;
  unsigned long f = 0;
  while(1)
  {
rp = LCD1000_ReadData(0x21,&f);
  }
}